We have a tank farm where aviation turbine fuel ( ATF) or jet fuel is stored in the refinery.

"Hammer blinds'are being used for positive isolation which will isolate the tanks from the system so that  contamination of the product is prevented.

Operators of the blinds complain that they find it very difficult to operate ( Physically removing the blinds has resulted back injury)  and change the position of the blind each time it is required for On off operations.

In order to bring the positive isolation , motorised valves were  thought of but it was not approved due to various reasons.

Can any suggest , what is the alternative to implement positive isolation , where positive isolation is possible without HSE prolems?

We have a tank farm where aviation turbine fuel ( ATF) or jet fuel is stored in the refinery.

"Hammer blinds'are being used for positive isolation which will isolate the tanks from the system so that  contamination of the product is prevented.

Nordstrom also makes a double block and bleed valve: two lubricated plug valves in one body, with gear operators for manual operation.

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